public static void bubbleSort(int []a,int n)
{
       	for(int i = 0 ;i< a.length -1; i++){
		for(int j = 0; j<a.length-1-i; j++){
			if(a[j]>a[j+1]){
				int temp = a[j];
				a[j] = a[j+1];
				a[j+1] = temp;
			}
		}
			
 	}
}
